00638-5156 — Phthalo Blue Red Shade

Golden Fluid Acrylics are highly intense, permanent acrylics with a consistency close to heavy cream. Produced from lightfast pigments, they offer strong colors with thin consistencies. No fillers or extenders. Ideal for spraying, brushing, and staining.

Phthalo Blue Red Shade

Color Swatch created using full strength/50/50 and was applied on cold press Bristol board (2 ply) material.

This color contains the following pigments:

PB15:1—Phthalo Blue

Pigment Type

organic

Chemical Name

alpha copper phthalocyanine

Chemical Formula

C32H16CuN8

Properties

Phthalo Blue PB15:1 is a structural variant of Phthalo Blue PB15 that produces more reddish tones.

Permanence

Phthalo Blues are completely lightfast and stable and are permanent for all paint uses. They are currently used in inks, coatings, and many plastics due to their stability and are considered a standard pigment in printing ink and the packaging industry.

Toxicity

Phthalo Blues have no significant hazards, although those made before 1982 contained some PCBs (polychlorinated biphenyls).

History

Developed by chemists using the trade name Monastral Blue, the organic blue dyestuff now known as Phthalo Blue was presented as a pigment in November 1935 in London. Its discovery was accidental. The dark color was observed in a kettle where a dye was being made from a British dyestuff plant. The demand for such a pigment came from commercial printers who wanted a cyan to replace Prussian Blue.